:root {
    --color-primary: #6b705c;
    --color-primary-dark: #464a3c;
    --color-accent: #c44536;
    --color-surface: #f7f3ea;
    --color-surface-deep: #efe7d7;
    --color-text: #1a1a1a;
    --rgb-primary: 107,112,92;
    --rgb-accent: 196,69,54;
    --radius-sm: 3px;
    --radius-md: 6px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    --shadow-sm: 0 1px 2px rgba(26,26,26,.06), 0 2px 6px rgba(var(--rgb-primary),.10);
    --shadow-md: 0 2px 4px rgba(26,26,26,.05), 0 10px 24px -8px rgba(var(--rgb-primary),.22), 0 1px 0 rgba(255,255,255,.7) inset;
    --shadow-lg: 0 4px 10px rgba(26,26,26,.07), 0 24px 48px -12px rgba(var(--rgb-primary),.30), 0 0 0 1px rgba(var(--rgb-accent),.10);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.5s cubic-bezier(0.22, 0.61, 0.36, 1);
    --heading-weight: 800;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background-color: var(--color-surface);
    background-image:
        radial-gradient(1200px 620px at 8% -12%, rgba(var(--rgb-accent), .08), transparent 62%),
        radial-gradient(900px 520px at 102% 2%, rgba(var(--rgb-primary), .12), transparent 66%),
        linear-gradient(180deg, #fdfbf6 0%, var(--color-surface) 46%, var(--color-surface-deep) 100%);
    background-attachment: fixed;
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 1px 0 rgba(255,255,255,.65); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--space-card);
    transition: var(--transition);
    background: linear-gradient(155deg, #ffffff 0%, #fbf8f1 44%, #f4efe3 100%);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    background-image: linear-gradient(135deg, rgba(var(--rgb-primary), .12) 0%, rgba(var(--rgb-accent), .10) 100%);
    box-shadow: 0 1px 2px rgba(26,26,26,.06), 0 6px 14px -6px rgba(var(--rgb-primary),.28);
    caret-color: var(--color-accent);
    accent-color: var(--color-accent);
}
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

/* ========== Section Layout Variants ========== */

/* news: list-view */
/* 列表模式 (图左文右) */
                .news-grid { display: flex; flex-direction: column; gap: var(--space-gap); }
                .news-grid .card { display: grid; grid-template-columns: 280px 1fr; }

/* features: centered */
/* 居中大卡片 */
                .feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

/* hero: minimal */
.hero { padding: 2rem 0; background: linear-gradient(118deg, rgba(var(--rgb-primary), .07) 0%, rgba(255,255,255,0) 52%, rgba(var(--rgb-accent), .06) 100%); }
.hero-content { max-width: 560px; }

/* testimonials: stacked */
/* 垂直堆叠 */
                .testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 20s linear infinite; filter: saturate(.92); }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }

/* Page Layout: narrow-centered */
/* 窄版居中 */
            .page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(var(--rgb-accent), .32); }
.card { border: 1px solid rgba(var(--rgb-primary), .16); }
header, .header, .navbar { background: linear-gradient(180deg, rgba(253,251,246,.94) 0%, rgba(247,243,234,.72) 60%, rgba(247,243,234,0) 100%); backdrop-filter: blur(10px) saturate(1.08); }

/* Responsive */
@media (max-width: 1024px) {
    .news-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .feature-list { grid-template-columns: repeat(2, 1fr) !important; }
    .partner-grid { grid-template-columns: repeat(3, 1fr) !important; }
    .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .hero-inner { grid-template-columns: 1fr !important; }
}
@media (max-width: 640px) {
    :root { --space-section: 2rem; --space-card: 1rem; --space-gap: 0.75rem; }
    .news-grid { grid-template-columns: 1fr !important; }
    .feature-list { grid-template-columns: 1fr !important; }
    .faq-list { grid-template-columns: 1fr !important; }
    .testimonial-list { column-count: 1 !important; }
    .partner-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .cta-inner { grid-template-columns: 1fr !important; }
}